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Basic Examples

These are some input files we used to test out the layout algorithms.

Test Files

Sampson Monestary Data

The samptime.net file created by Jim moody by thresholding Sampson data described below. The nodes are colored so that the range Black -> White equals Stayed -> Left. To generate the movies, the 1st layout was started from circle, and the rest using coordinates from the previous layout. Sampson KK version
Sampson FR version (with cooling values (0,1.0) (21,0.25) (64,0.15) (150,0.07) (240,0.0) )

Decription of Sampson data from UCINET's Help file:

Sampson recorded the social interactions among a group of monks while resident as an experimenter on vision, and collected numerous sociometric rankings. The labels on the data have the abbreviated names followed by the codings used by Breiger and Boorman in all their work. During his stay, a political "crisis in the cloister" resulted in the expulsion of four monks (Nos. 2, 3, 17, and 18) and the voluntary departure of several others - most immediately, Nos. 1, 7, 14, 15, and 16. (In the end, only 5, 6, 9, and 11 remained). All the numbers used refer to the Boorman and Breiger numbering and are not row or column labels. Hence in the end Bonaventure, Berthold, Ambrose and Louis all remanied.

Most of the present data are retrospective, collected after the breakup occurred. They concern a period during which a new cohort entered the monastery near the end of the study but before the major conflict began. The exceptions are "liking" data gathered at three times: SAMPLK1 to SAMPLK3 - that reflect changes in group sentiment over time (SAMPLK3 was collected in the same wave as the data described below). Information about the senior monks was not included.

  • Breiger R., Boorman S. and Arabie P. (1975). An algorithm for clustering relational data with applications to social network analysis and comparison with multidimensional scaling. Journal of Mathematical Psychology, 12, 328-383.
  • Sampson, S. (1969). Crisis in a cloister. Unpublished doctoral dissertation, Cornell University.
  • Borgatti, S.P., Everett, M.G. and Freeman, L.C. 2002. Ucinet 6 for Windows. Harvard: Analytic Technologies.

Newcomb Data

The procedures used to create this movie from the newcomb1.net file are described step-by-step in Dan's intro lab.

Decription of Sampson data from UCINET's Help file:

These 15 matrices record weekly sociometric preference rankings from 17 men attending the University of Michigan in the fall of 1956; data from week 9 are missing. A "1" indicates first preference, and no ties were allowed.

The men were recruited to live in off-campus (fraternity) housing, rented for them as part of the Michigan Group Study Project supervised by Theodore Newcomb from 1953 to 1956. All were incoming transfer students with no prior acquaintance of one another.

  • Newcomb T. (1961). The acquaintance process. New York:Holt, Reinhard & Winston.
  • Nordlie P. (1958). A longitudinal study of interpersonal attraction in a natural group setting. Unpublished doctoral dissertation, University of Michigan.
  • White H., Boorman S. and Breiger R. (1977). Social structure from multiple networks, I. Blockmodels of roles and positions. American Journal of Sociology, 81, 730-780.
  • Borgatti, S.P., Everett, M.G. and Freeman, L.C. 2002. Ucinet 6 for Windows. Harvard: Analytic Technologies.